that, of course, is after they released the sometime elvis impersona impersonator, paul kevin curtis who was in jail for nearly a week. investigators found no efd of ricin at his home or his car. he spoke in a news release following his release from jail. >> when you've been charged with something and you've never heard of ricin -- i thought they heard rice. i said, i don't even eat rice. i respect president obama. i love my country. and would never do anything to pose a threat to him or any other u.s. official. >> so kevin, what are your plans right now? what are your immediate plans? >> find my dog moo cow. >> moo cow got away. >> she got loose when homeland security swarmed in on me when i went to check my mail. >> so someone is still out there who sent ricin-laced letters to the president. kimberly has been reporting on this pr washington -- for the "washington post." thank you for your time. we saw that strange press conference. and you have to set this aside with the seriousness, though, of these ricin-laced letters. and the quote unquote who done it that still remains. >> righ